About this item 【Intelligent Light-Sensitive Sensor】The Light up Car Coasters feature an advanced intelligent light-sensitive sensor, ensuring automatic activation when you place your cup in the holder, providing a seamless and convenient experience 【7-Color Light Options】Enjoy a vibrant ambiance with our seven-color light options. These LED Cup Holder Lights for Car automatically cycle through colors, enhancing your driving experience and adding a touch of style to your vehicle 【Three Light Modes】Customize your vibe with three distinct light modes: 7-color cycle mode, breathing light mode, and gradient mode. This versatility allows you to set the perfect atmosphere inside your car, no matter the occasion 【Waterproof Design】Our LED Car Cup Holder Coaster is designed to be waterproof, ensuring durability and longevity even in spills or unexpected messes. Focus on the road while knowing your coasters are protected 【Long-Lasting Battery Life】These smart induction charging coasters can be used for about 15 days on a full charge, without the need for frequent charging. You can drive with confidence knowing that your coasters will illuminate your journey when needed Specification Product Name: Light Up Car Coasters Size:Diameter - 6.8cm/2.67in, Height - 0.85cm/0.33in Material: Acrylic + LED Installation location: Water cup slot Color: Colorful cycle (can switch blue, red, white, yellow, green, pink purple, ice blue single color) Instructions: The photosensitive product will light up when it is dark, and will automatically turn off in 15 seconds without vibration, otherwise it will turn off Battery Power Supply: USB charging is provided, and it can be used normally for about 15 days when fully charged. Packing List: 1.*Light Up Car Coasters Note: 1.Due to manual measurements, please allow slight measurement deviations. 2.Due to the different display and lighting effects, the actual color of the item may be slightly different from the color displayed on the picture.